Hawkeye Firefly 8S S009R Battery (Banggood, Aliexpress: Compatible with Hawkeye Firefly 8S, 3.85V 1200mAh (the best price with coupon)).
Price history, coupons and price alert are available on this page. Best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
2PCS * 3.7V 1350mAh Li-ion Battery with 2 in1 USB Charger Kit For Hawkeye Firefly 7S 8S 8SE X Action Camera S009R | $22.91 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($16.89): BGJON8
2. ($16.89): BGRCParts8
3. ($16.89): BGMatt2022
4. ($16.89): BGToys8
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): f62884, Parts8, 2019SPEDM, bgssaff9, BGBCFPV, BGBCBG10, 502C6B, BGOTC21, BGBFAFF2019, BGCITYADS2019, 2020CNY, BGVDay10%off, BGTT10, bGhOnEy10, BGFPVS10, BGSS10%SW, BGRC902, BGAFF10OFF, BG11SHOP, BGDAVIS, BGGAL8, Tabby20, BG1efeb0, 8Couponsde, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, BGJUNEGSG9, BGRCT10, TTSUMMER8, Cuponation9
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Here is price history (for all/most countries) for Hawkeye Firefly 8S S009R Battery. The lowest price was: $4.12.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).